PeakTech 1211 Manual

PeakTech Multimeter 1211

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PeakTech ® 1206 1212-

User Manual

2 CH & 4 CH

Tablet Oscilloscopes

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Table of content

1. Safety precautions…............................................................................................................ 3

2. Safety symbols and terms………......................................................................................... 5

3. Quick start guide................................................................................................................... 7

3.1 Front………….……………………………………………………………………………………. 8

3.2 Side view…… ……………………………………………………………………………..……… 10

3.3 Upper side…… ………………………………………………………………………………….... 11

4. Introduction to the user interface ……………………………………………………............... 12

5. Check before commissioning………………….………………………………………………... 13

5.1 Functional test…................................................................................................................ 14

5.2 Probe compensation……………………………………………………………………………. 15

5.3 Setting the probe attenuation factor…………………………………………………………. 15

5.4 Self - calibration…………………………………………………………………………………..17

5.5 Introduction to the vertical system…………………………………………………………… 17

.......................................................................... 5.6 Introduction to the horizontal system…18

5.7 Introduction to the trigger system…………………………………………………………….19

. 5.8 Introduction to the touchscreen operation…………………………… …………………… 20

5.8.1 Change menu...................................................................................... ............…............. 20

..5.8.2 Value setting in the menu .…………………………… ……………………………………… 20

..5.8.3 Calling up the main menu .……………………………………… …………………………… 21

..5.8.4 Selection of the active channel……………………………………………………………… 21

5.8.5 Adjustment of the horizontal and vertical …………………………………………….……… 22

5.8.6 Setting the trigger level …………………………………………………………………………22

...5.8.7 Setting the time base and voltage division……………………………… ………………... 23

5.8.8 Measurements using the Cursor ………………………………………………………………23

6. User instructions (for advanced users)…………………………………….......................... ..24

.................................................................................................. 6.1 Set the vertical system .... 25

..6.1.1 Setting the channel coupling………………………………………………………………… 26

6.1.2 Setting the probe attenuation . ………………………………………………………………… 26

6.1.3 Current measurement …………………………………………………………………………. 26

6.1.4 Invert a waveform ……………………………………………………………………….……... 26

..6.1.5 Setting the bandwidth limit…………………………………………………………………… 27

6.2 Set the horizontal system….............................................................................................. 27

6.3 Waveform zoom function………………………………………………………………………. 27

6.4 Operation oft he function menu………………………………………………………… …..... 28

6.5 Set the trigger system…………………………………………………………………………... 28

6.5 28 .1Single Trigger……………………………………………………………………………………

6.5 .2 Edge Trigger……………………………………………………………………………………. 29

6.5 30 .3 Video Trigger……………………………………………………………………………………

6.5 .4 Pulse Width Trigger……………………………………………………………………………. 31

6.5.5 Slope Trigger ………………………………………………………………………………...…. 31

6.5 .6 Runt Trigger…………………………………………………………………………………….. 33

...6.5.7 Window Trigger……………………………………………………………………………… . 34

6.5 .8 Timeout Trigger………………………………………………………………………………… 35

6.5.9 Nth Edge Trigger………………………………………………………………………………..36

6.5 .10 Logic Trigger…………………………………………………………………………………...37

6.5 .11 Bus Trigger……………………………………………………………………………………. 38

7. Sampling setup………………………………………………………………...…………………... 41

8. Implementation of the function setting for the auxiliary system………………………….. 43

45 8.1 Set the display system…………………………………………………………………………..

8.1.1 Persist…………………………………………………………………………………………… 45

8.1.2 Color . 46 ……………………………………………………………………… ……………………..

8.1.3 Counter …………………………………………………………………………………….……. 46

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...................................................................................... 8.2 Save and recall a waveform…..... 47

8.2.1 Save and recall the waveform……………………………….……………………………….. 48

8.2.2 Save the current screen image…..................................................................................... 49

8.2.3 Requirements of the USB storage device…………………………………………………… 49

..8.2.4 Use system provided function to format the USB device….............. ............................. 49

8.2.5 Record and playback waveforms…................................................................................. 51

8.2.6 Clone and recall a waveform . ……………………………………………………………… ….54

8.2.7 Data format description of OTA waveform file……………………………………………….56

9. Measurement functions…….…………………………………………………………………….. 57

9.1 Measure automatically……………………………..…………………………………………... 57

9.1.1 Measure …………………………………..…………………………………………………….. 58

9.1.2 Automatic measurement of the voltage parameters……………………..……………….... 59

9.1.3 Automatic measurement of the time parameters …………………….………………......... 60

9.1.4 Other measurement functions…….………………………………………………………….. 61

9.1.5 Adjustment of the automatic measurement . ………………………………………………… 61

9.2 Measure with the cursor…..…………………………………………………………………….62

9.2.1 Cursor measurements in FFT mode………………………………………………………… 64

9.3 Mathematical manipulation function…………………………………………….……………64

9.4 User defined function……………………………………………………………………………66

9.5 Digital filter……………………………………………………………………………………….. 67

9.6 Autoscale function............................................................................................................ 67

9.7 FFT function……………………………………………………………………………………… 69

9.7.1 Select the FFT window…................................................................................................. 70

9.8 XY mode…………………………………………………………………………..……………..... 71

9.9 Pass/Fail…………………………………………………………………………………………… 71

10. Executive buttons………………………………………………………………………………... 73

10.1 Print the screen image…………………………………………………………………..……. 74

11. Using the multimeter…………………………………………………………………………….. 75

11.1 Connections of the multimeter…………………………….………………………………... 75

11.2 Menu of the multimeter………….……………………………………………………………. 75

................................................................................................ 11.3 DMM information window 77

11.4 Measurements with the multimeter………………………………………………..……….. 78

11.4.1 AC/DC voltage measurement …………………………..…………………………………… 78

11.4.2 AC/DC current measurement……………………………………………………………….. 78

11.4.3 Resistance measurement…………………………………………………………………… 78

11.4.4 Testing diodes ……………………………………...………………………………………….79

11.4.5 Capacitance measurement …...……………………………………………………………...79

11.4.6 Continuity test ……………….………………………………………………………………... 79

80 11.5 Multimeter features……………………………………………………………………………..

11.5.1 Data Hold Mod – e………..……………………………………………………………………80

11.5.2 Information display ……..…………………………………………………………………….. 80

11.5.3 Auto or manual range…………………….………………………………………………….. 80

11.5.4 Relative measurements …………………..…………………………………………………..80

11.6 Multimeter recorder......................................................................... ............................. ... 81

12. Communication with PC………………………………………………………...………………. 83

12.1 USB port…………………………………………………………………………………………. 83

12.2 LAN port…………………………………………………………………………………………. 84

13. Specification........................................................................................................................ 87

13.1 Trigger…………………………………………………………………………………………….90

13.2 Multimeter……………………………………………………………………………………….. 92

14. General specifications…………………………………………….…………………………….. 93

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1. Safety precautions

This product complies with the requirements of the following directives of the European Union for

CE conformity: 2014/30/EU (electromagnetic compatibility), 2014/35/EU (low voltage), Overvoltage

category Pollution degree II; 2.

To ensure the operational safety of the device and to avoid serious injuries from current or voltage

flashovers or short circuits, the following safety instructions for operating the device must be

observed.

Only connect the device to sockets with a grounded protective conductor

Damages caused by non-observance of these instructions are excluded from claims of any kind.

* This device must not be used in high-energy circuits.

* Before connecting the device to a socket, check that the voltage setting on the device

corresponds to the existing mains voltage

* Only connect the device to sockets with a grounded protective conductor

* Do not place the device on a damp or wet surface.

* Do not operate the device in the vicinity of strong magnetic fields (motors, transformers, etc.)

* Do not exceed the maximum permissible input values under any circumstances (risk of serious

injury and / or destruction of the device)

* The specified maximum input voltages must not be exceeded. If it cannot be ruled out

unequivocally that these voltage peaks are exceeded due to the influence of transient interference

or for other reasons, the measurement voltage must be pre-damped accordingly (10: 1).

* Before switching to another measuring function, disconnect test leads or probe from the

measuring circuit.

* Check the device, test leads and other accessories for possible damage or bare or kinked cables

and wires before commissioning. If in doubt, do not take any measurements.

* Only carry out measurements in dry clothing and preferably in rubber shoes or on an insulating

mat.

* Do not touch the measuring tips of the test leads.

* Strictly observe the warning notices on the device.

* The device should not be operated unsupervised

* Do not expose the device to extreme temperatures, direct sunlight, extreme humidity or moisture.

* Avoid strong vibration.

* Keep hot soldering guns away from the immediate vicinity of the device.

* Before starting the measuring operation, the device should be stabilized to the ambient

temperature (important when transporting from cold to warm rooms and vice versa)

* Do not exceed the set measuring range with any measurement. This will prevent damage to the

device.

* Clean the housing regularly with a damp cloth and a mild detergent. Do not use any caustic

abrasives.

* Avoid any proximity to explosive and flammable materials.

* Opening the device and maintenance and repair work may only be carried out by qualified service

technicians.

* Do not place the device face down on the workbench or work surface to avoid damaging the

controls.

* Do not make any technical changes to the device.

* -Measuring devices do not belong in the hands of children-

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Warning!

If the oscilloscope is connected to an input signal of more than 42V peak (30Veff) or to circuits with

more than 4800VA, please observe the instructions below to avoid fire or electric shock:

- Use only insulated probes and test leads.

- Check all accessories before use and replace them if damaged. If in doubt, do not take

any measurements.

- Remove the USB cable that connects the oscilloscope to the computer.

- Never exceed the maximum specified input voltages. Since the voltage is transmitted

directly to the oscilloscope with the aid of the probe, the device can be damaged or there

is a risk of injury from electric shocks.

- Do not use exposed BNC or banana plugs.

- Do not insert any metal objects into the connections.

Cleaning the device:

Before cleaning the device, pull the plug out of the socket. Only clean the device with a damp, lint-

free cloth. Use only commercially available detergents.

When cleaning, make sure that no liquid gets inside the device. This could lead to a short circuit

and the destruction of the device.

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2. Safety symbols and terms

You can find the following symbols in these operating instructions or on the measuring

device.

Warning!

„Warning” indicates conditions and operating steps that pose a risk to the operator.

Attention!

„Attention” indicates conditions and operating steps that can cause damage to the

product or other objects.

Danger: High

voltage

See user

manual

Protective

conductor

terminal

Device

grounding

Earth clamp

(Ground)

In order to avoid physical damage and damage to the measuring device and the measuring

objects, you should read the following paragraph carefully and always pay attention to it during

future use. This device may only be used for the intended areas of application.

Warning:

The channels of the oscilloscope are not electrically isolated from one another. Therefore,

the measuring channels should be on a common ground during a measurement. To avoid

short circuits, the earth terminals must not be connected to different, non-isolated DC

levels.

Internal Ground (GND) Wiring Diagram:

Due to the internally connected earth terminals between the BNC socket, USB port and IEC

connector, the mains voltage should not be measured when the oscilloscope is operated

with mains voltage in conjunction with a PC operated with mains voltage. In the event of a

fault, a voltage flashover could occur across the GND of the PC.

Ground Clip

Signal Input

Electrical Outlet

Probe Oscilloscope AC Adapter

- - 6

Internal ground (GND) wiring diagram when the oscilloscope is connected to a PC:

Warning:

To avoid fire or electric shock, please observe the following points

when the connected oscilloscope input signal is greater than 42 Vpp

(30 Vrms) or circuits greater than 4800 VA:

1. Use only insulated measuring probes and measuring lines

2. Check the accessories for damage and functionality before use

3. Remove the test leads and any accessories after measurement

/ use

4. Remove the USB cable from the oscilloscope before each

measurement

5. Make sure that the voltage to be measured does not exceed the

maximum input voltage of the device, as the measuring voltage

is transmitted directly from the measuring probe to the

oscilloscope

6. Do not use damaged connection cables, e.g. damaged BNC

plugs

7. Do not insert any bare metal objects into the connections of the

device

Ground Clip

Signal Input

Oscilloscope

(Battery-power) PC Electrical OutletProbe

USB/LAN Cable

- - 9

Figure 1.1 Front view (2 channel oscilloscope)

1. LCD Touchscreen

2. 4CH Oscilloscope: CH buttons CH 1 – CH 4 /

2CH Osciloscope buttons CH 1 + CH 2:

3. Main switch for switching the device on and off

4. When a channel button lights up, the vertical position of the channel is set with the rotary

button. When the HOR button is lit, the horizontal position of the channels is set (including

math operations)

5. The HOR key is used to adjust the horizontal position of the various channels using the

rotary knobs.

6. The trigger button is used to set the respective trigger level for the various channels. To do

this, the lower rotary knob is used after activating the trigger button.

7. Rotary knob for setting the trigger level and the horizontal position of the measurement

voltage

8. Using the Copy button, it is possible to save the current measurement

9. Button for restoring the factory settings. When pressed, you will be asked to press the

button again to restore the factory settings

10. Autoset button for quick configuration of the oscilloscope to the current measurement signal

11. With the single button you are able to apply the trigger individually to a channel

12. Activates or deactivate the sampling of the input signal

13. Activates and deactivate the multimeter function

1 3

12 11

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3.2 Side view

Figure 1.2 Side view

1. Probe compensation: output of the 5V / 1kHz measuring signal

2. Output connection for the trigger and the pass / fail function (output type can be changed in

the menu Tool Function output output)  

3. USB device connection for transferring saved data e.g. to a PC

4. USB port for direct storage of data, e.g. on a USB stick

5. LAN port for connection to a PC

6. Charging connection socket for the enclosed charging adapter

- - 11

3.3 Upper side

Figure 3 Upper side of the 2 channel oscilloscope (PeakTech 1206, 1207) 1.

Figure 1.4 Upper side of the 4 channel oscilloscope (PeakTech 1211, 1212)

Input connectors of channels

Input connectors of multimeter

Input connectors of four channels

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4. Introduction to the user interface

Figure 2.0 User interface

1. Display range of the measured values

2. Start / stop the measurement (measurement activated / deactivated)

3. Display of the selected mode

4. Automatic setting for displaying the measured value

5. Representation of the vertical position of the cursor measurement

6. Display of the current trigger position of the bandwidth

7. Display of the horizontal trigger position

8. Display of the current trigger value and the location of the internal memory

9. Option to lock the touchscreen operation

10. Time display

11. Wifi display

12. Display when an external USB device is connected

13. Battery level indicator

14. Display of the multimeter function

15. Channel 1 waveform

16. Display of the trigger position of the channel

17. Display of the horizontal position of the measuring cursor

18. Channel 2 waveform

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19. Display of the frequency of the triggered signal

20. Display of the current trigger type

21. Selection to display the submenu items

22. Display of the measured type of the corresponding channel

23. Display of the recording length of the measured values

24. Display of the current sampling rate

25. Display of voltage division, zero point position and bandwidth limit, as well as symbol for

coupling type

26. Display of the set main time base

27. Window to show the absolute measured values of the respective channel

28. Position of the zero point position of the channel 2 waveform

29. Position of the zero point position of the channel 1 waveform

5. Check before commissioning

After receiving a new oscilloscope, it is recommended that you test the device as follows:

1. Check whether the device has been damaged in transit.

If you note that the cardboard packaging or the protective foam padding are badly damaged, keep

them until the entire device and its accessories have passed the electrical and mechanical test.

2. Check the accessories

heck that the accessories are complete. If any accessories are missing or damaged, please

contact your dealer.

3. Check the device

If you note any damage to the exterior of the device, or if the device is not working properly or if

the performance test does not pass, please contact your dealer. If the device has been damaged

during transport, please keep the outer packaging and also inform your dealer about the damage.

- - 14

5.1 Functional test

Check the meter is working properly as follows

1. Switch on the device with the main switch " " by pressing and holding the button.

The device performs a self-test and displays the PeakTech logo. If desired, press the “Default”

button to reset the oscilloscope to the factory settings. The default value for the probe

attenuation in the menu is 10X.

2. t an attenuation of 10x on the probe and connect the probe to the CH1 Se

Align the slot on the probe with the channel 1 BNC connector and rotate the probe clockwise to

secure it in place.

Connect the tip of the probe and the earth terminal to the plug of the task head compensator.

3. Press the “Autoset“ button

The square wave signal with a frequency of 1 KHz and a 5V SS value is displayed after a few

seconds

Figure 3.0 Display of the compensation square wave signal

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5.2 Probe compensation

The first time you connect the probe to an input channel, you must match the probe to the input

channel. A probe that is not or incorrectly compensated results in measurement errors. Perform

the probe compensation as follows:

1. Set the attenuation factor of the probe to 10X in the menu, set the switch on the probe to 10X

and connect the probe to channel 1. When using the hook tip, make sure it stays securely

attached to the probe. Connect the probe tip to the signal connector of the probe compensator

and connect the terminal of the reference cable to the ground terminal of the probe

compensator; then press the AUTOSET button.

2. Check the displayed waveforms and adjust the probe until correct compensation is achieved

Overcompensated Correct compensation Undercompensated

Abbildung 3.1 Tastkopfkompensation

3. Repeat the procedure if necessary in order to obtain an image that is as even as possible.

5.3 Setting the probe attenuation factor

The probe has several probe attenuation factors that affect the oscilloscope's vertical scale factor.

If the setted probe attenuation factor should be changed or checked, press the key for the function

menu of the respective channel and then the selection key corresponding to the probe until the

correct value is displayed.

- - 16

This setting remains in effect until it is changed again.

Note: The attenuation factor of the probe is in the menu presetted to 10x.

Make sure that the value set on the probe's attenuation switch corresponds to the

attenuation value set on the oscilloscope.

The values that can be set with the switch on the probe are 1X and 10X (see picture).

Note: When the attenuation switch is set to 1X, the probe limits the bandwidth of the

oscilloscope to 5 MHz. You need to set the switch to 10X if you want to take

advantage of the full bandwidth of the oscilloscope.

Safety instrucstion for using the probe head

The protective ring around the probe head handle prevents unintentional reaching over or slipping

and thus contact with any metal parts that may be live (see error! Reference source could not be

found).

Handle protection

Warning:

To avoid electric shock, you should always keep your fingers behind

the safety ring on the probe.

To protect you from electric shock, do not touch any conductive metal

part of the probe tip when it is connected to a power source.

Before any measurements are carried out, always first connect the

probe to the oscilloscope and then the earth terminal to the housing of

the device under test.

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5.4 Self - calibration

With the auto-calibration, the oscilloscope can be quickly put in the optimal state for high-precision

measurements. You can run this program at any time, but you must do it if the ambient

temperature varies by more than 5 ° C. Remove all probes and cables from the input jacks before

performing the auto calibration. Press the Utilitysymbol, press the “ ” button, then press the

Function area and then press “ ”, finally press SelfCal. A window now appears which asks Adjust

you to press the SelfCal button again to start the self-calibration.

5.5 Introduction to the vertical system

As shown in Figure 3.2, there are some buttons and buttons in the vertical control elements that

are used to operate the oscilloscope.

Press one of the channel buttons CH1 or CH2 to open the corresponding channel menu. To

deselect the channel, press the button again.

If you want to adjust the vertical position and the vertical scaling of a channel, first press the

corresponding channel button to select the desired channel.

Now use the rotary knobs to set the vertical position or the vertical scaling of the channel.

Figure 3.2 Setting the vertical parameters

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1. Press the control panel button CH1 or CH2 to select the desired channel

2. When one of the channel buttons is lit, you can use the upper knob to display the selected

channel waveform in the center of the waveform window. The top knob controls the vertical

display position of the selected channel waveform. When the top knob is turned, the pointer

of the grounding point of the selected channel is moved to move up and down the

waveform and the position report in the center of the screen changes accordingly.

3. You can change the vertical scale setting. You can read the resulting status information on

the display. Use the information in the status bar at the bottom of the waveform window to

determine the vertical scaling factor of the channel. Turn the lower knob and change the

"Vertical Scaling Factor (Voltage Division)" of the selected channel. The display shows that

the scaling factor of the selected channel has been changed accordingly in the status bar

5.6 Introduction the horizontal systemto

As shown in Figure 3.3, there is a button and two buttons in the horizontal control elements, which

are used to operate the oscilloscope. The following steps explain how the horizontal settings are

made.

Figure 3.3 Setting the horizontal parameters

Upper knob: adjust horizontal position

When the HOR

button is lit

Lower knob: adjust horizontal scale

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1. With the HOR button lit, press the HOR button to toggle between normal mode and

wave zoom mode.

2. With the HOR button lit, rotate the lower knob to change the horizontal timebase

setting and observe the resulting change in status information. Rotate the lower knob

to change the horizontal time base. It can be seen that the horizontal time base

displayed in the status bar changes accordingly.

3. When the HOR button is lit, use the upper knob to adjust the horizontal position of

the signal in the waveform window. The upper button is used to control the trigger

offset of the signal or for other special applications. When used to trigger the shift,

the waveform can be observed to move horizontally as the top knob is turned. By

pressing the upper rotary knob, it is possible to reset the set offset to 0.

5.7 Introduction to the trigger system

As shown in Figure 3.4, it is possible to manage the trigger control using a button and a rotary

knob. The following steps explain how the trigger settings are made.

Figure 3.4 Setting the trigger

Press the symbol and open the trigger menu. In this submenu it is possible to adjust the signal

by setting the trigger for the display.

Upper knob: adjust trigger level

When the Trigger button is lit

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Press repeatedly to

switch the options

Click to increase the

value of cursor position

Move the cursor

Click to decrease the

value of cursor position

1. Press the symbol and open the trigger menu. In this submenu it is possible to

adjust the signal by setting the trigger for the display.

2. To set the trigger, press the trigger button that it lights up. You are now able to adjust

the trigger level of the previously selected channel using the upper rotary knob for

the required display.

5.8 Introduction to the touchscreen operation

The oscilloscope can be controlled and adjusted using the push buttons and rotary knobs. But it is

also possible to make the respective setting using the touchscreen.

A symbol is permanently displayed in the upper right corner of the display, which shows whether

the touchscreen is locked or available ( ). When the lock is open, you can adjust the or

settings using the touchscreen. When it is closed, no settings can be made via the touchscreen.

Briefly press the symbol to lock or unlock the touchscreen.

The following explains each of the oscilloscope displays:

5.8.1 Change menu

To change menu options, press the area of the menu item to be changed. Touch the

corresponding key to switch, see Figure 3.5:

Figure 3.5 Menu options

5.8.2 Value setting in the menu

use the crosshairs to set the desired measuring rate of the measured value (Figure 3.6):

Figure 3.6 Cursor for setting the measuring rate

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5.8.3 Calling up the main menu

To call up the main menu, press the symbol in the lower right corner of the screen ( ). The menu

is shown in Figure 3.7.

Figure 3.7 Main menu

5.8.4 Selection of the active channel

The available channels are displayed in the lower left corner. By activating the respective channels

it is possible to activate or deactivate them. Each active channel is illuminated on the button.

When a channel is deactivated, the associated button is darkened (see Figure 3.8).

Channel is off

Channel is on and selected

Figure 3.8 Display of the channels

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5.8 Adjustment of the horizontal and vertical .5

By simply pressing the touchscreen on the left-hand side, the arrow keys appear for setting the

horizontal and vertical of the selected channel. By pressing the free area of the touchscreen again,

the arrows are hidden. In order to be able to make fine adjustments, press directly on the P in the

arrow.

Figure 3.9 Adjustment of the horizontal and vertical

To make fine adjustments, press the P in the arrow directly (see Figure 3.10)

Figure 3.10 Fine adjustment

5.8.6 Setting the trigger level

To adjust the trigger level of the channel, press the free area on the right of the touchscreen. Two

arrows appear with which you are now able to change the trigger value (see Figure 3.11).

Figure 3.11 Setting the trigger

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5.8.7 Setting the time base and voltage division

To set the time base and the voltage division using the touchscreen, press in the middle of the

touchscreen and arrows appear for setting the values. The time base or the voltage division is set

by simply pressing the arrows (see Figure 3.12).

Figure 3.12 Time base and voltage divider

5.8.8 Measurements using the cursor

You are able to determine a recorded current value with the cursor. To do this, press the menu

key (see Accessing the main menu) and switch on the cursor. Now, as in Figure 3.13, the option of

setting two cursor lines to the measured value appears.

Figure 3.13 Measurements using the cursor

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6. User Instructions (for advanced users)

In the previous paragraphs, the user has already been familiarized with the basic functions of the

functional areas, buttons and knobs of the oscilloscope. Based on the introduction of the previous

chapters, the user should already have gained initial knowledge about changing the oscilloscope

settings, selecting and evaluating the status bars and general operation.

The following chapters cover the following subject areas:

 Set the vertical system

 Set the horizontal system

 Set the trigger system

 Carry out sampling settings

 Implementation oft he auxiliary system

 Set the display system

 Save and recall waveforms

 Record and playback waveforms

 Clone and recall a waveform

 Supporting system settings

 Perform automatic measurements

 Setting of automatic measurements

 Perform cursor measurements

 Using the math function

 Use the autoscale function

 Use the ececuting buttons

It is recommended that you read this chapter carefully in order to be able to use the various

measurement functions and other operating methods of the touchscreen oscilloscopes.

- - 25

6.1 Set the vertical system

The VERTICAL functions include 2 menu buttons such as CH1 CH2 (2CH models) and CH1 ～～

CH 4 (4 CH Models) as well as 2 rotary controls for vertical and horizontal setting, to be set for

each measuring channel.

Settings CH1 ～

～

～～～

～

～～ CH2, CH1 CH4

Each channel has an independent vertical menu with functions based on this channel.

Activate / deactivate waveform display

Pressing the CH1 CH2, CH1 CH4 buttons has the following effect: ～～

• If the waveform is switched off, it is switched on and the channel menu is displayed.

• If the waveform is already switched on, the channel menu is also displayed.

• If the waveform is already switched on and the channel menu is displayed, switch the waveform

and the channel menu off again with this action

Function

Settings

Description

Coupling

GROUND

Pass both AC and DC components of the input

signal.

Blocks the DC component in the input signal

Disconnect the input signal.

Inverted

Off

Display inverted waveform

Display original waveform

Probe

Attenuation

0.001X

1000X

Select a attenuation factor that corresponds to

the probe in order to obtain a correct

representation of the vertical scale factor.

Current

measure -

ment

Yes

If you are measuring current by probing the

voltage drop across a resistor, choose Yes

A/V (mA/V)

V/A (mV/A)

Click or to set the Amps/Volts ratio. The

range is 100 mA/V - 1 KA/V

Amps/Volts ratio = 1/Resistor value

Volts/Amp ratio is automatically calculated

Limit

Full band

20M

Full bandwidth

Limits the channel bandwidth to 20 MHz to

reduce visible noise

- - 26

6.1.1 Setting the channnel coupling

As an example, let's take a square wave signal on channel 1 that contains a DC bias. Proceed as

follows:

1. Press the CH 1 button to access the CH 1 menu

2. Press pairing in the channel menu

3. Select DC to view the DC and AC components of the signal

4. Select AC to display the AC components of the signal

6.1.2 Setting the probe attenuation

For correct measurement results, the settings of the attenuation factor in the operating menu of

the channel should always correspond to those of the probe (probe compensation page 15). If the

attenuation factor of the probe is 1: 1, the setting for the input channel should also be X1.

Proceed as follows, e.g. to set a attenuation factor of 10: 1 for channel 1:

1. Press the CH 1 button to enter the menu

2. Select the Sensor function. After that select the attenuation factor 10x on the left side of the

display

6.1.3 Current measurement

In order to perform a current measurement with the oscilloscope, you have to perform the voltage

drop on a resistor / shunt. In the following example, the current is measured by the voltage drop

across a resistor that has 1 Ω:

1. Press the CH 1 button to enter the menu

2. Now select the Probe function and switch from No to Yes in the Measurement Current

selection on the right. Now the setting for the V / A display appears. This shows the

respective display ratio of current to voltage. You can change this ratio by pressing the

button using the arrow keys and the + and - keys

6.1.4 Invert a waveform

The inverted waveform rotates the displayed signal 180 degrees from the phase of the ground

potential.

1. To invert the waveform, press the CH1 key

2. Press the Invert button to toggle between the On and Off settings

- - 27

6.1.5 Setting the bandwidth limit

When the high frequency components of a waveform are not important for your analysis,

bandwidth limiting can be used to suppress frequencies above 20 MHz.

Proceed as follows:

1. Press the CH 1 button to enter the menu

2. Select the limit value function

3. Now select the 20M function to only display frequencies up to 20 MHz

4. lect the Full Band function to measure all frequencies up to the maximum bandwidth Se

6.2 Set the horizontal system

To set the horizontal system, the HOR function key and the two rotary knobs are used as follows:

- Press the HOR key to activate the horizontal setting

- With the upper rotary knob you are now able to determine the horizontal position of the

respective channels

- The sampling rate of the respective channel is set with the lower rotary knob

- Press the HOR key again to activate the waveform zoom function

6.3 Waveform zoom function

Press the horizontal HOR button twice and enter the horizontal zoom mode for the waveform. The

upper part of the display shows the main window and the lower part the horizontal zoomed

window. The horizontal zoom window is the horizontal enlarged part of the selected area in the

main window.

Figure 4.0 Waveform zoom function

- - 28

6.4 Operation of the function menu

The operating area of the function menu comprises 13 function menu keys: Trig Menu, Acquire,

Utility, Autoscale, Save, Measure, Cursor, Math, Decode, HOR, FFT, XY, P / F, DMM as well

as 5 immediate selection keys: Autoset, Run / Stop, Single, Copy, default.

6.5 Set the trigger system

The trigger determines when the oscilloscope begins acquiring data and displaying the waveform.

Once properly set, the trigger can convert a fluctuating reading into a meaningful waveform.

When the oscilloscope begins acquiring data, it records enough data to plot the waveform to the

left of the trigger point. The oscilloscope continues to acquire data while it waits for a trigger

condition. When a trigger is detected, the device continues to record enough data to display the

waveform to the right of the trigger point.

The trigger control area consists of 1 rotary knob and 2 menu buttons.

6.5.1 Single trigger

Trigger control

The device provides four types of triggers: single trigger (single), alt trigger, logic trigger and bus

trigger. Each trigger type has different submenus.

There are two ways to get into the trigger mode:

Button operation: Press Menu in the trigger field to open the trigger menu. With H1 you can then

select the extended trigger menu, which you can scroll (turn) and select (press) with the

multipurpose rotary knob.

Touchscreen operation: Press the house symbol to open the touch menu. Select Trig Menu

and then the trigger (Single, Alt, Logic, Bus) in the lower menu. The trigger type can then be

selected under Type in the right image menu.

Single: Uses a single trigger to display a stable waveform on both channels.

Logic trigger: Triggers a signal according tot he conditions of the logic ratio

Bus trigger: Sets bus timing triggers

Trigger description

The single, logic and bus trigger menus are described below:

Edge trigger: Occurs when the trigger input runs through a specific voltage level with the

specified slope.

Video trigger: Trigger on fields or lines for a standard video signal

Slope trigger: The oscilloscope begins to trigger according to the rate of rise or fall of the signal

Pulse trigger: Finds impulses with certain widths

Runt trigger: Trigger pulses that run through one trigger level but not the other trigger level.

- - 29

Window trigger: Gives a high trigger level and a low trigger level. The oscilloscope

triggers when the input signal passes through the high or low trigger level.

Timeout trigger: The oscilloscope triggers when the time interval from the time of the

rising edge (or falling edge) due to the trigger level if the neighboring falling edge (or the rising

edge) due to the trigger level is greater than the set timeout time.

Nth Edge trigger: The oscilloscope triggers on the Nth edge that appears on the specified idle

time.

6.5.2 Edge trigger

An edge trigger occurs at the input signal trigger threshold. Select the Edge trigger mode to trigger

on the rising or falling edge of the signal.

Settings

Description

Single

Edge

Set vertical channel trigger type as edge trigger

Source

CH1

CH2

CH3

CH4

Channel 1 as trigger signal.

Channel 2 as trigger signal.

Channel 3 as trigger signal.

Channel 4 as trigger signal.

Coupling

Block the direct current component.

Allow all component pass.

Block the high-frequency signal, only low-frequency component

pass

Slope

Trigger on rising edge

Trigger on falling edge

Modus

Holdoff

Auto

Acquire waveform even no trigger occurs

Normal

Acquire waveform when trigger occurs

Single

When trigger occurs, acquire one waveform then stop

Holdoff

100 ns - 10 s, click or to set time interval before another

trigger occur, click to move cursor to choose which digit to be

set.

Sensitivity

Set the trigger sensitivity.

- - 30

Trigger level:

The trigger level indicates vertical trig position of the channel, turn the trig level knob or slide on

the touch screen upward and downward to move trigger level, during setting, an orange red dotted

line displays to show trig position, and the value of trigger level changes at the right corner, after

setting, dotted line disappears.

6.5.3 Video trigger

Select the video mode to trigger on video fields or video lines of NTSC, PAL or SECAM standard

video signals. In the video trigger mode, the setting information is displayed at the bottom right of

the screen, e.g: indicates that the video trigger has been selected on CH1 and the

sync type "even ".

Video trigger m u en :

Settings

Description

Trigger m ode

Video

Set vertical channel trigger type as video trigger

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Mode

NTSC

PAL

SECAM

Select video modulation

Sync

Line

Field

Odd

Even

Line NO.

Synchronic trigger in video line

Synchronic trigger in video field

Synchronic trigger in video odd filed

Synchronic trigger in video even field

Synchronic trigger in designed video line, click or

to set the line number

Mode

Holdoff

Auto

Acquire waveform even no trigger occurred

- - 31

6.5.4 Pulse width trigger

Pulse trigger occurs according to the width of pulse. The abnormal signals can be detected

through setting up the pulse width condition.

In Pulse Width Trigger mode, the trigger setting information is displayed on bottom right of the

screen, for example indicates that trigger type is pulse width, trigger source ,

is CH1, coupling is DC, polarity is positive, and trigger level is 0.00mV.

Pulse trigger menü :

Settings

Description

Trigger m e od

Pulse

Set vertical channel trigger type as pulse trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Coupling

Not allow DC portion to pass.

Allow all portion pass.

When

Choose the polarity

Select pulse width condition and click or to set

time, click to move cursor to choose which digit to

be set.

Mode

Holdoff

Auto

Normal

Single

Holdoff

Sensitivity

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to

choose which digit to be set

Set the trigger sensitivity

6.5.5 Slope trigger

The slope mode allows the oscilloscope to trigger on the rising / falling edge of a signal within a

specified period of time. In the slope trigger mode, the setting information is shown on the lower

right edge of the screen, e.g: indicates that the slope trigger has been selected

on CH1, slope increasing and the difference between the up-level and low-level threshold value is

0.00mV.

- - 32

Slope trigger menu list:

Setting

Description

Single

Slope

Set vertical channel trigger type as slope

trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

When

slope

Slope selecting

Set slope condition; click or to set slope

time, click to move cursor to choose

which digit to be set.

Threshold

&SlewRate

High level

Low level

Slew rate

Click or to set the High level upper limit.

Click or to set Low level lower limit.

Slew rate = (High level - Low level) / Settings

Mode

Holdoff

Auto

Acquire waveform even no trigger occurred

Normal

Acquire waveform when trigger occurred

Single

When trigger occurs, acquire one waveform

then stop

Holdoff

100 ns 10 s, click or to set time –

interval before another trigger occur, click

to move cursor to choose which digit to

be set.

- - 33

6.5.6 Runt trigger

The runt trigger records pulses that run through one trigger level, but not through another, as

shown in the graphic.

In runt trigger mode, the setting information is shown at the bottom right of the screen, e.g:

indicates that the runt trigger on CH1 with positive polarity has been selected

and the difference between the up-level and low-level threshold value is 0.00mV.

Runt trigger m u en :

Settings

Description

Trigger Mode

Runt

Set vertical channel trigger type as runt trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Threshold

Up Level

Low Level

Click or to set the up level threshold.

Click or to set the low level threshold.

Condition

Polarity

Positive Polarity, the oscilloscope triggers on the

positive runt pulse.

Negative Polarity, the oscilloscope triggers on the

negative runt pulse.

Click or to set pulse width, click to move

cursor to choose which digit to be set.

Trigger when runt pulse is greater than the set pulse

width.

Trigger when runt pulse equals to the set pulse width.

Trigger when runt pulse is lower than the set pulse

width.

Mode

Holdoff

Auto

Normal

Single

Holdoff

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to

choose which digit to be set.

- - 34

6.5. Window trigger 7

Provide a high trigger level and low trigger level, the oscilloscope triggers when the input signal

passes through the high trigger level or the low trigger level.

In Windows Trigger mode, the trigger setting information is displayed on bottom right of the

screen, for example, , indicates that trigger type is windows, trigger source is

CH1, polarity is positive, 0.00mV the differential between up level and low level threshold.

Fenster Trigger Menü :

Settings

Description

Trigger Mode

Window

Set vertical channel trigger type as Windows trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Threshold

Up Level

Low Level

Click or to set the up level threshold.

Click or to set the low level threshold.

Condition

Polarity

Positive Polarity, the oscilloscope triggers on the positive

Windows pulse.

Negative Polarity, the oscilloscope triggers on the negative

Windows pulse.

Enter: Triggers when the trigger signal enters the specified

trigger level range.

Exit: Triggers when the trigger signal exits the specified

trigger level range.

Time: Specify the hold time of the input signal after

entering the specified trigger level. The oscilloscope

triggers when the accumulated hold time is greater than

the windows time. Available range is 30ns-10s, default

100ns.

Mode

Holdoff

Auto

Normal

Single

Holdoff

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to choose

which digit to be set.

- - 35

6.5.8 Timeout trigger

The oscilloscope triggers when the time interval from when the rising edge (or the falling edge)

passes through the trigger level to when the neighbouring falling edge (or the rising edge) passes

through the trigger level is greater than the timeout time set.

In Timeout Trigger mode, the trigger setting information is displayed on bottom right of the screen,

for example, , indicates that trigger type is Timeout, trigger source is CH1, edge

is positive, 0.00mV is up level or low level threshold.

Timeout trigger m u en :

Settings

Description

Trigger Mode

Timeout

Set vertical channel trigger type as Timeout trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Polarity

Edge

Start timing when the rising edge of the input signal

passes through the trigger level.

Start timing when the falling edge of the input signal

passes through the trigger level.

Configuration

Idle Time

Set idle time. Idle time means the minimum time of idle

clock before searching data that can meet trigger

conditions. Available range is 30ns-10s, default 100ns.

Mode

Holdoff

Auto

Normal

Single

Holdoff

Sensitivity

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to

choose which digit to be set.

Set the trigger sensitivity.

- - 36

6.5.9 Nth edge trigger

The oscilloscope triggers on the Nth edge that appears on the specified idle time. As figure shown

below, the oscilloscope should trigger on the second falling edge after the specified idle time and

the idle time should be set to P1/P2/P3/P4 < Idle Time < M. Wherein, M, P1, P2, P3 and P4 are

positive or negative pulse width participating in the counting.

In Nth Edge Trigger mode, the trigger setting information is displayed on bottom right of the

screen, for example, , indicates that trigger type is Nth Edge, trigger source is

CH1, -150V is up level or low level threshold.

Nth trigger menu :

Settings

Description

Trigger Mode

Nth Edge

Set vertical channel trigger type as Nth Edge trigger.

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Polari ty

Edge

Trigger on the rising edge of the input signal when

voltage level meets the specified trigger level.

Trigger on the falling edge of the input signal when

voltage level meets the specified trigger level.

Configuration

Idle Time

Set idle time before the edge counting in Nth Edge

Trigger. Click or to set idle time, click to

move cursor to choose which digit to be set. Available

range is 30ns-10s, default 100ns.

Edge Num

Set the edge number value of “N” in Nth Edge trigger.

Mode

Holdoff

Auto

Normal

Single

Holdoff

Sensitivity

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to

choose which digit to be set.

Set the trigger sensitivity.

- - 37

6.5.10 Logic trigger

Trigger according to logic relation.

In Logic Trigger mode, the trigger setting information is displayed on bottom right of the screen, for

example, , indicates that trigger type is Logic, logic mode

is AND, CH1 high level and trigger level is 0.00mV.

Logic trigger m u en :

Settings

Description

Trigger Mode

Logic

Set vertical channel trigger type as Logic trigger.

Logic Mode

AND

XNOR

XOR

Set logic mode as AND.

Set logic mode as OR.

Set logic mode as XNOR.

Set logic mode as XOR.

Input Mode

CH1

CH2

CH3

CH4

Set CH1 as High Level, Low level, high or low level,

Rise and Fall.

Set CH2 as High Level, Low level, high or low level,

Rise and Fall.

Set CH3 as High Level, Low level, high or low level,

Rise and Fall.

Set CH4 as High Level, Low level, high or low level,

Rise and Fall.

Note

：

：：

When input mode of one channel is set as Rise

or Fall, the other channel could not be set as Rise and

Fall at the same time.

Out Mode

Goes True

Goes False

Is True>

Is True<

Is True=

Trigger when condition turns True from False.

Trigger when condition turns False from True.

Trigger when the time of true condition is greater than

the set time

Trigger when the time of true condition is equal to the

set time

Trigger when the time of true condition is lower than

the set time

Mode

Holdoff

Auto

Normal

Single

Holdoff

Sensitivity

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

100 ns - 10 s, click or to set time interval before

another trigger occur, click to move cursor to

choose which digit to be set.

Set the trigger sensitivity.

Note: If a channel is set as “Rise” or “Fall”, the other channel cannot be set as “Rise” or “Fall” at

the same time

- - 38

6.5.11 Bus trigger

1. SPI

Trigger on the specified data when the timeout condition is meet. When using SPI trigger, you

need to specify the SCL and SDA data sources.

In SPI bus trigger mode, the trigger setting information is displayed on bottom right of the screen,

for example, indicates that trigger type is SPI, CH1 trigger level is 0.00mV. ,

Settings

Description

Bus Type

SPI

Vertikaler Bus-Typ als SPI-Triggerung festlegen

Source

SCL

Set SCL

Timeout

Time out

Set the minimum time that SCL must be idle, that is a

period of SCL, available range 100ns-10s. Time out

means SCL keeps idle for a specified time before

oscilloscope starts to search for the data (SDA) on

which to trigger. Click or to set time out, click

to move cursor to choose which digit to be set.

ClockEdge &

Data

Clock Edge

Set Clock Edge as rising edge or falling edge. Means

sample the SDA data on the rising edge or falling edge

of the clock.

Data Bits

Set the number of bits of the serial data character

string. It can be set to any integer between 4-32. Click

or to set Data Bits.

Current Bits

Set the number of the data bits, ranges from 0-31,

click or to set Current Bit.

Data

Set the value of the current data bit as H, L, or X

(H or L).

All Bits

Set all the data bits to be the specified value in Data.

Mode

Holdoff

Auto

Normal

Single

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

- - 39

2. I2C trigger

The I2C serial bus consists of SCL and SDA. The transmission rate is determined by SCL, and the

transmission data is determined by SDA. As shown in below figure, oscilloscope can trigger on the

start, restart, stop, ack lost, specific device address or data value, also device address and data

value at the same time.

In I2C bus trigger mode, the trigger setting information is displayed on bottom right of the

screen,for example, , indicates that trigger type is I2C, CH1 trigger level is

0.00mV.

Settings

Description

Bus Type

I2C

Set vertical channel bus type as I2C trigger.

Source

SCL

SDA

Set SCL.

Set SDA.

When

Start

Trigger when SDA data transitions from high to low while

SCL is high.

Restart

When another start condition occurs before a stop

condition.

Stop

Trigger when SDA data transitions from low to high while

SCL is high.

Ack Lost

Trigger when SDA data is high during any

acknowledgement of SCL clock position.

Address

Trigger on the read or write bit when the preset address

is met.

Adr

Format

Addr

Bits

Set Address Bits to be , “7” “8” or “10”.

Set address according to the preset address bits,

address range is 0-127, 0-255, 0-1023 respectively.

Set Data Direction to be or . Write Read

Note: The set is not available when Address bits is set to

“8”.

Address

Directio

Data

Search for the preset data value on SDA and trigger on

the dump edge of SCL of the last bit of the data area.

Data

Format

Byte

length

Set data byte length, available range 1-5 bytes. Click

or to set byte length.

Select the data bit, ranges from 0 to (byte length*8 -1).

Set data to be H, L, or X (H or L)

Set all the data bits to be the specified value in Data

Current

Bit

Data

All Bits

Addr / Da ta

Set all the data bits to be the specified value in Data

Mode

Holdoff

Auto

Normal

Single

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

- - 40

3. RS232 trigger

RS232 is a serial communication mode used in the data transmission between PCs or between

PC and Terminal. A character is transmitted as a frame of data which consist of 1bit start bit, 5-

8bits data bits, 1bit check bit and 1-2 stop bits.

In RS232 bus trigger mode, the trigger setting information is displayed on bottom right of the screen,

for example, , indicates that trigger type is UART, CH1 trigger level is 0.00mV.

Settings

Description

Bus Type

RS232

Set vertical channel bus type as RS232 trigger.

Input

Source

CH1

CH2

CH3

CH4

Select CH1 as the trigger source

Select CH2 as the trigger source

Select CH3 as the trigger source

Select CH4 as the trigger source

Polarity

Normal

Select polarity of data transmission as Normal.

Select polarity of data transmission as Inverted.

Inverted

W hen

Start

Trigger on the start frame of position. After choosing

this condition, press Configure to enter detailed

settings.

Error

Trigger when error frame is detected. After choosing

this condition, press Configure to enter detailed

settings.

Chk Error

Trigger when Chk Error is detected. After choosing this

condition, press Configure to enter detailed settings.

Data

Trigger on the last bit of the preset data. After choosing

this condition, press Configure to enter detailed

settings.

Configuration

Start

Common Baud: click in the left menu to choose

common baud.

Custom Baud: click or choose baud, ranges

from 50 to 10,000,000.

Error

Stop Bit：Select “1” or ”2”.

Parity: Select None, Odd, or Even

Common Baud: click in the left menu to choose

common baud.

Custom Baud: click or to choose baud, ranges

from 50 to 10,000,000.

Chk Error

Parity: Select Odd or Even.

Common Baud: click in the left menu to choose

common baud.

Custom Baud: click or to choose baud, ranges

from 50 to 10,000,000.

- - 41

Data

Data Bits: Set as 5, 6, 7, 8 bits.

Data：Set data according to data bits, ranges from 0-

31, 0-63, 0-127 or 0-255.

Common Baud: click in the left menu to choose

common baud.

Custom Baud: click or to choose baud, ranges

from 50 to 10,000,000.

Mode

Holdoff

Auto

Normal

Single

Acquire waveform even no trigger occurred

Acquire waveform when trigger occurred

When trigger occurs, acquire one waveform then stop

7. Sampling Setup

Click to call up the menu panel. Click the Acquire softkey on pane Acqu Mode Length PERF l, , ,

Mode, and Intrpl is shown in the bottom menu.

Description of the Acqu Mode menu

Settings

Description

Acqu Mode

Sample

Normal sampling mode.

Peak detect

Use to capture maximal and minimal

samples. Finding highest and lowest

points over adjacent intervals. It is used

for the detection of the jamming burr

and the possibility of reducing the

confusion.

Average

4, , ,128 16 64

It is used to reduce the random and

don't-care noises, with the optional

number of averages.

Refresh Rate

Low

Set the waveform refresh rate, you can

turn on this mode when you need to

observe a single waveform

Description of the record length menu:

Settings

Description

Länge

1000

Choose the record length

Note: When four channels are turned on, the max record

length is 10M; max 20M for two channels; and max 40M

for one channel.

10K

100K

10M

20M

40M

Description of the Intrpl menu :

Settings

Description

Intrpl

Sinx/x

Use sine(x)/x interpolation

Use linear interpolation

- - 42

Interpolation method is a processing method to connect the sampled points, using some points to

calculate the whole appearance of the waveform. Select the appropriate interpolation method

according to the actual signal.

Sine(x)/x interpolation: Connect the sampled points with curved lines.

Linear interpolation: Connect the sampled points with straight lines. This method is suitable to

rebuild the straight-edged signals, such as square or pulse wave.

Figure 4.1 Sine(x)/x interpolation

Figure 4.2 Linear interpolation

- - 43

8. Implementation of the function setting for the auxiliary system

Configuration

Click to call up the menu panel. Click the Utility softkey on panel, select Function in the

bottom menu, select Configure in the left menu.

The description of is shown as the follows: Configure Menu

Settings

Description

Language

Choose the display language of the operating

system.

Set time

Display

OFF

On/Off the date display

Hour/ minute

Setting Hour / Minute

Day / Month

Setting Day / Month

Year

Setting Year

Keylock

Lock all keys. Unlock method: push HOR

button, then push Trigger button, repeat 3

times.

About

Show serial number, version, and checksum

Display

Click to call up the menu panel. Click the Utility softkey on pane select in the l, Function

bottom menu, select Display in the left menu

The description of Display Menu is shown as the follows:

Settings

Description

Backlight

0% - 100%

Adjust the backlight.

Graticule

Select the grid type

Battery

OFF

Turn on or off the battery display

Menu time

OFF, 5s –30s

Set the disappear time of menu

- - 44

Adjust

Click to call up the menu panel. Click the Utility softkey on pane select in the l, Function

bottom menu, select in the left menu. Adjust

Function menu

Description

Self Cal

Carry out the self-calibration procedure.

Default

Call out the factory settings.

ProbeCh.

Check whether probe attenuation is good.

Self - Calibration

The self-calibration procedure can improve the accuracy of the oscilloscope under the ambient

temperature to the greatest extent. If the change of the ambient temperature is up to or exceeds

5°C, the self-calibration procedure should be executed to obtain the highest level of accuracy.

Before executing the self-calibration procedure, disconnect all probes or wires from the input

connector. Click to call up the menu panel. Click the Utility softkey on pane select l, Function

in the bottom menu, the function menu will display at the left, select . If everything is ready, Adjust

select in the bottom menu to enter the self-calibration procedure of the instrument. Self Cal

Probe checking

To check whether probe attenuation is good. The results contain three circumstances: Overflow

compensation, Good compensation, Inadequate compensation. According to the checking result,

users can adjust probe attenuation to the best. Operation steps are as follows:

1. Connect the probe to CH1, adjust the probe attenuation to the maximum.

2. Click to call up the menu panel. Click the Utility softkey on panel select in the ,Function

bottom menu, select in the left menu. Adjust

3. Select in the bottom menu, tips about probe checking shows on the screen. ProbeCh.

Select again to begin probe checking and the checking result will occur after 3s; ProbeCh.

push any other key to quit.

Output

Click to call up the menu panel. Click the Utility softkey on panel, select Function in the bottom

menu, select Output in the left menu.

Output menu item in the bottom menu sets the output type of Trig Out (P/F) connector on Fehler!

Verweisquelle konnte nicht gefunden werden.. In the bottom menu, select Output.

The description of is shown as the follows: Output menu

Settings

Description

Output

Trig Out

Output trig signal synchronously

Pass/Fail

Output High Level when Pass, and Low Level

when Fail

Device and Print Set menu items set the print output, refer to "Fehler! Verweisquelle konnte

nicht gefunden werden."

- - 45

LAN Set

To use the LAN network connection with the computer, please read the corresponding article

"Connection with the PC".

Update

Use the side panel USB port to update your instrument firmware using a USB memory device.

Refer to " " Fehler! Verweisquelle konnte nicht gefunden werden.

8.1 Set the Display system

Click to call up the menu panel. Click the Display softkey on panel, the Display menu is shown

as follows:

Display

Press the Display menu selection button. In the lower selection menu, select Type and now you

can switch between Dot and Vect by pressing a button.

8.1.1 Persist

When the function is used, the persistence display effect of the picture tube oscilloscope Persist

can be simulated. The reserved original data is displayed in fade color and the new data is in bright

color.

(1) Click to call up the menu panel. Click the Display softkey on panel.

(2) Select in the bottom menu. Persist&Color

(3) Select in the right menu. Persist

(4) In the Time menu, select the persist time, including OFF, 1 Second, 2 Seconds, 5 Seconds

and Infinity Infinity . When the " " option is set for Persist Time, the measuring points will be

stored till the controlling value is changed Select to turn off persistence and clear the . OFF

display.

(5) Select in the bottom menu to erase the results of previous acquisitions from the display. Clear

The oscilloscope will start to accumulate acquisitions again.

Settings

Description

Type

Dots

Vect

Only the sampling points are displayed.

The space between the adjacent sampling points in

the display is filled with the vector form.

Persist

& Color

Time

OFF

1 sec.

2 sec.

5 sec.

Infinit

Set the persistence time

Color

OFF

Turn on/off the color temperature function

Counter

OFF

Turn on/off counter

Clear

Erase the results of previous acquisitions from the

display. The oscilloscope will start to accumulate

acquisitions again.

- - 46

8.1.2 Color

Color temperature function uses color-grading to indicate frequency of occurrence. The hot colors

like red/yellow indicate frequently occurring events, and the colder colors like blue/green indicate

rarely occurring events.

(1) Click to call up the menu panel. Click the

Display softkey on panel.

(2) Select in the bottom menu.Persist&Color

(3) Select in the right menu, choose Color

between / .ON OFF

Figure 4.3 Temperature color function is turned on

8.1.3 Counter

It is a 6-digit single-channel counter. The counter can only measure the frequency of the triggering

channel. The frequency range is from 2Hz to the full bandwidth. Only if the measured channel is in

Edge Single mode of trigger type, the counter can be enabled. The counter is displayed at the

right bottom of the screen.

2 CH:

Figure 4.4 Frequenca counter display 2CH

4CH:

Figure 5 Frequency counter display 4CH 4.

Operation steps:

1. Click , click the softkey on pane set the trigger type to Trig Menu l, Single, set the trigger

mode to , select the signal source. Edge

2. Click , click the softkey on panel Display .

3. Select Counter OFF as ON or in the bottom menu.

- - 47

8.2 Save and recall a waveform

Click to call up the menu panel. Click the softkey on pane you can save the waveforms, Save l,

configures, screen images, record or clone the waveform.

Function Menu

Settings

Description

Type

Wave

Configure

Image

Record

Clone

Choose the saving type.

About the type, see "Record Fehler!

Verweisquelle konnte nicht gefunden werden."

on P Fehler! Textmarke nicht definiert..

About the Clone type, see “Fehler! Verweisquelle

konnte nicht gefunden werden.” on PFehler!

Textmarke nicht definiert..

When the type is , the menu shows as following: Wave

Type

Wave

Format

(Right menu)

For internal storage, only BIN can be selected. For

external storage, the format can be BIN, TXT or

CSV.

Source

CH1

CH2

CH3

CH4

Math

(or MathFFT)

Check the waveform to be saved. (If certain

channel is off, the corresponding menu item will be

disabled.)

Object

& Show

Object

Wave0 to

Wave99

Choose the address which the waveform is saved

to or recall from.

Show

OFF

Recall or close the waveform stored in the current

object address. When the show is ON, if the current

object address has been used, the stored

waveform will be shown, the address number and

relevant information will be displayed at the top left

of the screen; if the address is empty, it will prompt

"None is saved".

Close All

Close all the waveforms stored in the object

address.

- - 48

Save

Save the waveform of the source to the selected

address. Whatever the of save menu is set, Type

you can save the waveform by just pressing the

Copy panel button in any user interface.

Select in the bottom menu, in the right Type

Format menu, you can select the storage format.

Storage

Internal

External

Save to internal storage or USB storage. When

External is selected, save the waveform according

to the current record length (see "Fehler!

Verweisquelle konnte nicht gefunden werden."

on P ); the file Fehler! Textmarke nicht definiert.

name is editable. The BIN waveform file could be

open by OWON waveform analysis software (on

the supplied CD).

When the type is , the menu shows as following: Configure

Configure

Setting0

…..

Setting19

The setting address

Save

Save the current oscilloscope configure to the

internal storage

Load

Recall the configure from the selected address

When the type is , the menu shows as following: Image

Save

Save the current display screen. The file can be

only stored in a USB storage, so a USB storage

must be connected first. The file name is editable.

The file is stored in BMP format.

8.2.1 Save and recall the waveform

The oscilloscope can store 100 waveforms, which can be displayed with the current waveform at

the same time. The stored waveform called out cannot be adjusted.

In order to save the waveform of CH1, CH2 and Math into the address 1, the operation steps should

be followed:

1. Turn on CH1, CH2 and Math channels.

2. Click to call up the menu panel. Click the Save softkey on panel.

3. : Select in the bottom menu, select in the left menu. Saving Type Wave

4. Select in the bottom menu, select in the right menu. Storage Internal

5. Select in the bottom menu, check Source CH1 Math, CH2, in the right menu for Source.

- - 49

6. Select in the bottom menu, select as object address in the left menu. Object & Show Wave1

7. Select in the bottom menu to save the waveform. Save

8. : Select Recalling Object & Show Wave1 in the bottom menu, select in the left menu. In the

right menu, select Show as ON, the waveform stored in the address will be shown, the address

number and relevant information will be displayed at the top left of the screen.

Tip:

Regardless of which type has been selected in the Save menu, you can always save the current

waveform directly as a BIN file using the Copy button, without going through the save menu. If the

storage has been set to external, make sure that there is also an external storage medium on the

oscilloscope. Please set up the USB storage device as shown in the following chapters.

8.2.2 Save the current screen image

A screenshot can only be saved on an external USB storage device.

1. Install a USB storage device: Insert a USB stick into the "USB host port" of the device. If a USB

symbol is displayed in the upper right, the USB storage device has been correctly recognized

and connected. If the USB storage device is not recognized correctly, please proceed as

described in the corresponding chapter.

2. After the USB storage device is installed, click to call up the menu panel. Click the Save

softkey on panel, the save menu is displayed at the bottom of the screen.

3. Select in the bottom menu, select in the left menu. Type Image

4. Select in the bottom menu, an input keyboard used to edit the file name will pop up. The Save

default name is current system date and time. Select the key in the keyboard to confirm.

8.2.3 Requirements of the USB storage device

The supported file format of a USB storage device is: FAT32 file system with a cluster size of not

more than 4KB. A USB mass storage device is also supported. If a connected USB storage device

does not work, format it as described in the following two options: Using the system tool or a

formatting tool (8Gbyte or larger USB memory sticks can be formatted using the second method).

8.2.4 Use system provided function to format the USB device

1. Connect the USB storage device to the computer

2. Right click - to enter Computer Management interface Computer Manage

3. Click Disk Management menu, and information about the USB disk will display on the right side

with red mark 1 and 2.

- - 50

Figure 4.6 Disc manager

1. Right click on the area marked in red and select Format and a warning message appears,

which you confirm with YES.

Figure 4.7 Warning message USB

2. Set the file format as FAT32 with a cluster size of 4096. Select quick formatting "Perform a

quick format" and confirm with OK and confirm with YES.

Figure 4.8 Setting for formatting the USB device

- - 51

3. Formatting process

Figure 4.9 Formatting the USB device

4. Check whether the formatting has been carried out and FAT32 with a cluster size of 4096 is

now displayed.

8.2.5 Record and playback waveforms

Click to call up the menu panel. Click the Save Type softkey on panel. Select in the bottom

menu, select in the left menu. Record

Wave Record function can record the input current wave. You can set the interval between

recorded frames in the range of 10 ms - 10 s. The max frame number reaches 1000, and you can

get better analysis effect with playback and storage function. The storage medium contains two

kinds: Internal and External.

When the storage medium is Internal, Wave Record contains four modes: OFF, Record,

Playback Storage and .

When storage medium is External, Wave Record contains two modes: OFF, Record.

Record: To record wave according to the interval until it reaches the end frame set.

Record menu (Internal Storage) shows as follows:

Settings

Description

Mode

OFF

Record

Playback

Storage

Close wave record function

Set record menu

Set playback menu

Set storage menu

Record Mode

Frame Set

End Frame

Click or to select the number of frames

to record (1 - 1000)

Interval

Click or to select the interval between

recorded frames (10ms - 10s)

Refresh

OFF

Refresh wave during recording

Stop refreshing

Operate

Play

Stop

Begin to record

Stop recording

- - 52

Note:

Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is turned off

while recording, the waveform of the channel is invalid in the playback mode.

Playback: Play back the wave recorded or saved.

Playback menu shows as follows:

Settings

Description

Playback Mode

Frame Set

Start Frame

End Frame

Cur Frame

Interval

Click or to select the number of start frame

to playback (1 - 1000)

Click or to select the number of end frame

to playback (1 - 1000)

Click or to select the number of current

frame to playback (1 - 1000)

Click or to select the interval between

played back frames (10ms - 10s)

Play Mode

Loop

Once

Play back the wave continuously

Play back the wave just one time

Operate

Play

Stop

Begin to record

Stop recording

Storage: Save the current wave according to the start frame and end frame set.

Storage menu shows as follows:

Settings

Description

Storage

Mode

Frame Set

Start Frame

Click or to select the number of start frame

to store (1 - 1000)

End Frame

Click or to select the number of end frame

to store (1 - 1000)

Save

Save the waveform record file to the internal

memory

Load

Load the waveform record file from the memory

Use the waveform record as follows:

1. After opening the menu, press the Save button

2. Select Type in the lower image menu, select Record

3. Select in the bottom menu, select in the right menu Mode OFF

4. In the bottom menu, select as Storage Internal

5. Select in the bottom menu, select in the right menu Mode Record

6. Select in the bottom menu, set and in the right menu FrameSet End frame Interval

7. In the bottom menu, set Refresh

8. In the bottom menu, select as Operate Play

9. Select in the bottom menu, select Mode Playback FrameSet in the right menu. Set and

Playmode Operate Play, select as

10. To save the wave recorded, select in the bottom menu, selec in the right menu. Mode t Storage

Select in the bottom menu to set the range of frames to store, select in the FrameSet Save

bottom menu

11. To load the waveform from the internal memory, select in the bottom menu, then enter the Load

Playback Mode of the to analyze the wave

Note: When playback the waveform, the sampling, trigger, or display function is not available.

- - 54

Bild 4.10 Wiedergabe der Wellenform mittels der Software

8.2.6 Clone and recall a waveform

Click to call up the menu panel. Click the Save Type softkey on panel. Select in the bottom

menu, select in the left menu. Clone

You can clone one or two channel waveforms between two cursors, and save it as a cloned

waveform into a USB memory device. The cloned waveform files saved to a USB memory device

are saved with the extension "ota".

Clone wave menu:

Settings

Instruction

Type

Clone

Select the clone function.

Source

Mode

Out1

Out2

Out1&Out2

Select the source mode.

The cloned waveform includes one waveform,

which will be used for AG Out1

The cloned waveform includes one waveform,

which will be used for AG Out2

The cloned waveform includes two waveforms,

which will be used for AG Out1 and AG Out2

AG Output

Out1

CH1 CH2

CH3 CH4

Select the source, which will be used for AG Out1

AG Output

Out2

CH1 CH2

CH3 CH4

Select the source, which will be used for AG Out2

- - 55

Line

Click line to select it, swipe left/right to move . ait

Click line to select it, swipe left/right to move . bit

Two cursors are linked. Click line or to select a b

them, swipe left/right to move the pair of cursors.

Set the cursors to select the entire screen

automatically.

The waveform information is displayed at the left

bottom corner of the screen.

Note Out Of Limits: If " " appears in the information or a

message "Waveform points beyond the limit."

appears on the screen, that means the length of the

cloned waveform exceeds the limit. When the source

mode is Out1 or Out2, the maximum length is 2M; When

the source mode is Out1&Out2, the maximum length is

1M. Click to call up the menu panel. Click the

Acquire softkey on panel, select in the bottom Length

menu, and set the record length to a smaller value.

Save

Save the waveform between two cursors onto a USB memory

device Insert a USB memory device into the port on the side .

panel. If the icon appears on the top right of the screen, the USB

memory device is installed successfully. If the USB memory device

cannot be recognized, format the USB memory device according

to the methods in "Fehler! Verweisquelle konnte nicht gefunden

werden." on P . The name is Fehler! Textmarke nicht definiert.

default as current system date and time. The cloned waveform will

be saved onto the USB memory device as an OTA file.

To save the CH1 waveform and save to the USB memory:

(1) Click to call up the menu panel. Click the softkey on panel. Save

(2) Select in the bottom menu, select in the left menu. Type Clone

(3) Select in the bottom menu, select as in the right menu. Source Mode Out1

(4) Select AG Output Out1 as CH1 in the right menu.

(5) Select Line in the bottom menu. If a or b is selected, swipe to move the cursor. If ab is selected,

swipe to move the pair of cursors. , the entire screen will be selected is selectedIf x

automatically.

(6) Select Save in the bottom menu. An input keyboard used to edit the file name will pop up. Select

the keys to input the file name, select the key in the keyboard to confirm. The cloned

waveform will be saved onto the USB memory device as an OTA file.

Length

Frequency

Time

- - 56

8.2.7 Data format description of OTA waveform file

If the source mode is set to Out1 or Out2, OTA file consists of two parts: the file header and the

channel data. If the source mode is set to Out1&Out2, OTA file consists of three parts: file header,

the first channel data, and the second channel data. The file header represents the parameter of

file data, which is expressed in "parameter name + value". Each parameter name is a case-

sensitive string of 4 bytes. The parameter value is at least 4 bytes.

1. Format description oft he file header:

1) HEAD

Parameter name

Meaning

Value

Comment

HEAD

Header size

4 bytes int

2) TYPE

Parameter name

Meaning

Value

Comment

Type

Model

12 bytes char

3) BYTE

Parameter name

Meaning

Value

Comment

Byte

Data length in bit

4 bytes int

4) SIZE

Parameter name

Meaning

Value

Comment

Size

File size

4 bytes int

Used to check the file

integrity

5) VOLT

Parameter name

Meaning

Value

Comment

Volt

Voltage division, divided

by 400 is ADC resolution

(When the source mode

is Out 1 & Out 2, it ist he

first Channel voltage

division

4 bytes float

The value indicates

the voltage (the unit

is mV), such as 200

6) SAMP

Parameter name

Meaning

Value

Comment

Samp

Samp Rate le

4 bytes float

The unit is Sa/s

7) ADCB

Parameter name

Meaning

Value

Comment

ADCB

ADC bit, ADC

resolution

4 bytes int

8-bit or -bit 12

8) CHAN

Parameter name

Meaning

Value

Comment

Chan

Number of

Channnels

4 bytes int

1 o 2 r

- - 57

9) VOL2

Parameter name

Meaning

Value

Comment

VOL2

Voltage division,

divided by 400 is

ADC resolution

(When the source

mode is Out 1 & Out

2, it ist p58-he second

channel voltage

division)

4 bytes float

The value indicates

the voltage (the unit

is mV), such as 200

2.Data

The data type is signed integer. You can determine the data type (char, short int or int) based on the BYTE

parameter. The valid range is determined by the ADCB parameter, e.g. the valid range for 8-bit ADC is -

127 to +127.

9. Measurement functions

9.1 Measure automatically

Click to call up the menu panel. Click the softkey on panel to display the Measure Measure

menu. At most 8 types of measurements could be displayed on the bottom left of the screen.

The oscilloscopes provide 39 parameters for auto measurement, including Period, Frequency,

Mean, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot, Preshoot, Rise Time, Fall Time,

+PulseWidth, -PulseWidth, +Duty Cycle, -Duty Cycle, Screen Duty, FRR, FRF, FFR, FFF, LRR,

LRF, LFR, LFF, Delay A→B , Delay A→B , Cycle RMS, Cursor RMS, FRR, FRF, FFR, FFF,

LRR, LRF, LFR, LFF, Phase A→B , Phase A→B , +PulseCount, -PulseCount, RiseEdgeCnt,

FallEdgeCnt, Area, and Cycle Area.

The "Automatic Measurements" menu is described in the following table:

Function Menu

Description

Add

Meas Type

(left menu)

Select the measure types

Source

CH1 CH2

CH3 CH4

Select the source

Add

Add the selected measure types (shown at the

left bottom, you could only add 8 types at most)

Remove

Meas Type

Select the types need to be deleted.

- - 58

(left menu)

The selected type and source are shown in the

Remove menu on the right.

Remove

Remove the selected measure type

Remove

All

Remove all the measures

Snapshot

OFF

Show all the measures of the snapshot source

Turn off the snapshot

Source

CH1

CH2

CH3

CH4

Select the snapshot source

9.1.1 Measure

Only if the waveform channel is in the ON state, the measurement can be performed. The automatic

measurement cannot be performed in the following situation:

1) On the saved waveform

2) On Waveform Math waveform

3) On the video trigger mode

On the Scan format, period or frequency cannot be measured.

To measure the period or the frequency of CH 1, follow the steps below:

1. Click to call up the menu panel. Click the softkey on panel to show the automatic Measure

measurement function menu

2. Select Add in the bottom menu

3. In the left Type menu, select Period

4. In the right menu, select as Source CH1

5. In the right menu, select Add. The period type is added

6. In the left Type menu, select Frequency

7. In the right menu, select as Source CH1

8. In the right menu, select Add. The frequency type is added

The measured value will be displayed at the bottom left of the screen automatically (see fig. 4.11)

- - 59

Fig. 4.11 Automatic measurement

9.1.2 Automatic measurement of the voltage parameters

The oscilloscopes provide automatic voltage measurements including Mean, PK-PK, RMS, Max,

Min, Vtop, Vbase, Vamp, OverShoot, PreShoot, Figure 4.12 Cycle RMS, and Cursor RMS.

shows a pulse with some of the voltage measurement points.

Fig. 4.12 Explanation of the parameters

Mean: The arithmetic mean over the entire waveform

PK-PK: Peak to peak voltage

RMS: The true Root Mean Square voltage over the entire waveform.

Max: The maximum amplitude. The most positive peak voltage measured over the entire waveform.

Min: The minimum amplitude. The most negative peak voltage measured over the entire waveform.

- - 60

Vtop: Voltage of the waveform's flat top, useful for square/pulse waveforms.

Vbase: Voltage of the waveform's flat base, useful for square/pulse waveforms.

Vamp: Voltage between Vtop and Vbase of a waveform.

Overshoot: Defined as (Vmax-Vtop)/Vamp, useful for square and pulse waveforms.

Preshoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse waveforms.

Cycle RMS: The true Root Mean Square voltage over the first entire period of the waveform.

Cursor RMS: The true Root Mean Square voltage over the range of two cursors.

9.1.3 Automatic measurements of the time parameters

The oscilloscopes provide time parameters auto-measurements include Period, Frequency, Rise

Time, Fall Time, +D width, -D width, +Duty, -Duty, Delay A→B , Delay A→B , Screen Duty,

Phase A→B , and Phase , FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF. A→B

Figure 4.13 shows a pulse with some of the time measurement points:

Fig. 4.13 Explanation of the parameters

Rise Time: Time that the leading edge of the first pulse in the waveform takes to rise from 10% to

90% of its amplitude.

Fall Time: Time that the falling edge of the first pulse in the waveform takes to fall from 90% to

10% of its amplitude.

+D width: The width of the first positive pulse in 50% amplitude points.

-D width: The width of the first negative pulse in the 50% amplitude points.

+Duty: +Duty Cycle, defined as +Width/Period.

-Duty:-Duty Cycle, defined as -Width/Period.

Delay :A→B The delay between the two channels at the rising edge.

Delay A→B : The delay between the two channels at the falling edge.

Screen Duty: Defines as (the width of the positive pulse)/(Entire period)

Phase :A→B Phase difference calculated according to " Delay " and the period of A→B

source A, expressed in degree. The calculation formula is as shown below:

Phase Delay A→B = ( A→B ÷ Period of source A) × 360°

Phase :A→B Phase difference calculated according to " Delay " and the period of source A→B

A, expressed in degree. The calculation formula is as shown below:

Phase Delay A→B = ( A→B ÷ Period of source A) × 360°

Rise Time Fall Time

+Width -Width

- - 61

Note for the following delay measurements:

Source A and Source B can be set in the automatic measurement function menu.

FRR: Time between Source A first rising edge and Source B first rising edge.

FRF: Time between Source A first rising edge and Source B first falling edge.

FFR: Time between Source A first falling edge and Source B first rising edge.

FFF: Time between Source A first falling edge and Source B first falling edge.

LRR: Time between Source A first rising edge and Source B last rising edge.

LRF: Time between Source A first rising edge and Source B last falling edge.

LFR: Time between Source A first falling edge and Source B last rising edge.

LFF: Time between Source A first falling edge and Source B last falling edge.

9.1.4 Other measurement functions

+PulseCount : The number of positive pulses that rise above the mid reference crossing in

the waveform.

-PulseCount : The number of negative pulses that fall below the mid reference crossing in

the waveform.

RiseEdgeCnt : The number of positive transitions from the low reference value to the high

reference value in the waveform.

FallEdgeCnt : The number of negative transitions from the high reference value to the low

reference value in the waveform.

Area : The area of the whole waveform within the screen and the unit is voltage-second.

The area measured above the zero reference (namely the vertical offset) is positive; the area

measured below the zero reference is negative. The area measured is the algebraic sum of the

area of the whole waveform within the screen.

Cycle Area : The area of the first period of waveform on the screen and the unit is

voltage-second. The area above the zero reference (namely the vertical offset) is positive and the

area below the zero reference is negative. The area measured is the algebraic sum of the area of

the whole period waveform.

Note: When the waveform on the screen is less than a period, the period area measured is 0.

9.1.5 Adjustment of the automatic measurement

This chapter explains how it is possible to adapt the automatic measurement.

Adjust an automatic measurement using the gating and statistics functions as follows:

Gating

 Press the measuring system under the TrigMenu tab. The menu for the automatic

measurement function is displayed at the bottom of the screen.

 Press the Set button at the bottom of the screen. The settings menu is displayed on the

right side of the screen.

- - 62

 Select the gating menu. There are two menus: Screen and Cursor under the area. Click

Screen, then click the cursor or press the right on-screen menu key twice to set the cursor

area.

Statistics

Choose Statistics. You can select On or Off to enable or disable statistics on the reading.

Reset statistics: Restart the statistics.

9.2 Measure with the Cursors

Click to call up the menu panel. Click the softkey on panel to switch to the ON state Cursor

and display the cursor menu. Click it again to turn cursors off.

Cursor measurement for the normal mode:

The description of the is shown the following table: cursor menu in

Function

Settings

Description

Type

Voltage

Time

Time&Voltage

AutoCursr

Display the voltage measurement cursor and menu.

Display the time measurement cursor and menu.

Display the time and voltage measurement cursor and

menu.

The horizontal cursors are set as the intersections of the

vertical cursors and the waveform

Line Type

(Time&Voltage

type)

Time

Voltage

Makes the vertical cursors active.

Makes the horizontal cursors active.

Window

(Wave zoom

mode)

Main

Extension

Measure in the main window.

Measure in the extension window.

Source

CH1 to CH4

Display the channel to which the cursor measurement

will be applied.

Perform the following operation steps for the time and voltage cursor measurement of the channel

CH1:

1. Click to call up the menu panel. Click the softkey on panel to switch to the Cursor ON

state and display the cursor menu.

2. Select in the bottom menu, select in the right menu. Source CH1

3. Select the first menu item in the bottom menu, the menu will display at the right of the Type

screen. In the right menu, select for Type, two blue dotted lines displayed Time&Voltage

along the horizontal direction of the screen, two blue dotted lines displayed along the vertical

direction of the screen. Cursor measure window at the left bottom of the screen shows the

cursor readout.

4. In the bottom menu, select Line Type as Time to make the vertical cursors active. Click line

a b to select it, swipe left/right to move . Click line it to select it, swipe left/right to move . it

5. In the bottom menu, select as to make the horizontal cursors active. Line Type Voltage

Click line to select it, swipe /down to move . Click line to select it, swipe /down to aup it bup

move . it

- - 63

6. Push the button to enter wave zoom mode. In the bottom cursor menu, Horizontal HOR

select Window Main Extension as or to make the cursors shown in the main window or

zoom window.

Fig. 4.14 Time & Voltage cursor measurement

Auto Cursor

For the AutoCursor type, the horizontal cursors are set as the intersections of the vertical cursors

and the waveform.

Bild 4.15 Auto Cursor

- - 64

9.2.1 Cursor measurements in FFT mode

In FFT mode, press the cursor button to open the cursor menu.

A description of the cursor menu in FFT mode can be found below:

Settings

Description

Type

Vamp

Freq

Freq&Vamp

Auto Cursor

Display the Vamp (or Phase) measurement

cursor and menu

Display the Freq measurement cursor and menu

Display the corresponding measurement cursor

and menu

The horizontal cursors are set as the

intersections of the vertical cursors and the

waveform

Line Type

(Freq&Vamp or

Freq&Phase type)

Freq

Vamp

Makes the vertical cursors active

Makes the horizontal cursors active

Window

(Wave zoom mode)

Main

Extension

Measure in the main window

Measure in the FFT extension window

Source

Math FFT

Display the channel to which the cursor

measurement will be applied

Perform the following operation steps for the amplitude and frequency cursor measurement of

math FFT:

1. Click to call up the menu panel. Click the FFT softkey on panel to switch to the ON state

and display the FFT menu. In the bottom menu, select Format. In the right menu, select

amplitude unit ( or V RMS Decibels).

2. Click to call up the menu panel. Click the softkey on panel to switch to the ON Cursor

state and display the cursor menu.

3. In the bottom menu, select as Window Extension.

4. Select the first menu item in the bottom menu, the menu will display at the right of the Type

screen. In the right menu, select Freq&Vamp for Type, two blue dotted lines displayed along

the horizontal direction of the screen, two blue dotted lines displayed along the vertical

direction of the screen. Cursor measure window at the left bottom of the screen shows the

cursor readout.

5. In the bottom menu, select Line Type as Freq to make the vertical cursors active. Click line

a b to select it, swipe left/right to move . Click line it to select it, swipe left/right to move . it

6. In the bottom menu, select Line Type as Vamp to make the horizontal cursors active. Click

line to select it, swipe /down to move . Click line to select it, swipe up/down to move aup it b

it.

7. In the bottom cursor menu, you can select as to make the cursors shown in Window Main

the main window.

9.3 Mathematical manipulation function

The Mathematical Manipulation function is used to show the results of the addition, multiplication,

division and subtraction operations between two channels, advanced math feature including Intg,

Diff, Sqrt, user defined function, and digital filter. Click to call up the menu panel. Click the Ma th

softkey on panel to switch to the ON state and display the math menu on the bottom.

- - 65

The waveform calculation menu:

Settings

Description

Waveform

Math

Factor1

CH1

CH2

CH3

CH4

Select the signal source of the factor1

Sign

+ - * /

Select the sign of mathematical manipulation

Factor2

CH1

CH2

CH3

CH4

Select the signal source of the factor2

Vertical

(div)

Click or adjust the vertical position of the Math to

waveform

Vertical

(V/div)

Click or adjust the vertical division of the Math to

waveform

User

function

Edit fun

Intg, Diff, Sqrt, and user defined function

Vertical

(div)

Click or adjust the vertical position of the Math to

waveform

Vertical

(V/div)

Click or adjust the vertical division of the Math to

waveform

DIR

Channel

CH1

CH2

Select channnel

Type

low-pass

Only the signals whose frequencies are lower

than the current cut-off frequency can pass the

filter.

high-pass

Only the signals whose frequencies are greater

than the current cutoff frequency can pass the

filter.

band-pass

Only the signals whose frequencies are greater

than the cutoff frequency down and lower than

the current cutoff frequency upper can pass the

filter.

band-reject

Only the signals whose frequencies are lower

than the current cutoff frequency down or

greater than the current cutoff frequency upper

can pass the filter.

- - 66

Window

Retangular

Tapered

Triangular

Hanning

Hamming

Blackman

Select window for digital filter

cut-off fre

upper down

Click or set cut-off frequency to

Vertik al

(div)

Drücken Sie auf , um die vertikale Position der oder

mathematischen Wellenform anzupassen

Example waveforms add CH1 & CH2:

1. Click to call up the menu panel. Click the Math softkey on panel to switch to the ON state

and display the math menu on the bottom. The pink M waveform appears on the screen

2. Select Waveform Math in the bottom menu

3. In the right menu, select as CH1 Factor1

4. Select as in the right menu Sign +

5. as In the right menu, select Factor2 CH2

6. Select in the right menu click or adjust the vertical position of Math Vertical (div) , to

waveform

7. Select Vertical (V/div) in the right menu, click or to adjust the vertical division of Math

waveform

9.4 User defined function

1. Click the softkey on panel to switch to the state and display the math menu on the Math ON

bottom

2. Select in the bottom menu, select in the right menu, User Function Edit fun an expression

input keyboard pops up

Figure 4.16 Keyboard

3. Create an expression. When done, choose in the keyboard to confirm. The division of

Math waveform is displayed at the left bottom of screen

- - 67

9.5 Digital filter

Digital filter provides 4 types of filters (low pass, high pass, band pass and band reject). The

specified frequencies can be filtered by setting the cut-off frequency. Digital filters can only be

used for CH1 or CH2.

1. Click the softkey on panel to switch to the state and display the math menu on the Math ON

bottom

2. Select in the bottom menu DIR

3. In the right menu, select as or channel CH1 CH2

4. In the right menu, select select the desired filter type type,

5. In the right menu, select , select the desired window window

6. When or type is selected, select low-pass high-pass cut-off fre in the right menu.

When band-pass or band-reject type is selected, select upper or down in the right menu. Click

or adjust the frequency to

7. In the right menu, select click or adjust the vertical position of Math Vertical (div), to

waveform. The voltage division of Math waveform is the same as the selected channel

9.6 Autoscale function

This is a function which is used to carry out a simple and quick test on the input signal. The

function is applied to follow-up signals automatically even if the signals change at any time.

Autoscale enables the instrument to set up trigger mode, voltage division and time scale

automatically according to the type, amplitude and frequency of the signals.

Press Autoscale to display the following menu:

Settings

Description

AutoScale

OFF

Switching on the autoscale function

Switching off the autoscale function

Mode

Follow-up and adjust both vertical and horizontal settings.

Follow-up and only adjust horizontal scale.

Follow-up and only adjust vertical scale.

Wafevorm

Show multi period waveforms

Shows only one or two periods

To measure the signal using autoscale, you can do as the follows:

1. Click to call up the menu panel. Click the softkey on panel to switch to the ON Autoscale

state. The function menu will appear.

2. In the bottom menu, Select . In the right menu, select Mode .

3. In the bottom menu, Select . In the right menu, select Wave .

- - 68

Figure 4.17 Autoscale function

1. When entering into Autoscale function, a autoscale indicator will be flickering on the top left of

the screen.

2. In the mode of Autoscale, the oscilloscope can self-estimate Trigger Mode (Edge, Video). At this

point, the trigger menu is not available.

3. When the input signal contains the DC component, the coupling will be set to AC, the amplitude

of the input signal should be greater than 5mV, and the frequency should be greater than 20Hz.

4. At the mode of Autoscale, DSO is always set as DC coupling with AUTO triggering, the holdoff

is set to 100ns.

5. At the mode of Autoscale, if adjust the vertical position, voltage division, trigger level or time

scale, the oscilloscope will pause the Autoscale function. To resume Autoscale, push the

Autoset front panel button.

6. When video triggering, the horizontal time scale is 50us.

7. While the Autoscale is working, the settings below will be made forcibly:

The DSO will switch from the wave zoom mode to the normal mode In the decoding, pass/fail .

or XY mode, when entering into Autoscale, these modes will be turned off. In the STOP status,

when entering into Autoscale, the status will be set to RUN.

- - 69

9.7 FFT function

FFT refers to the Fourier transform operation on a certain channel.

The FFT menu:

Source

CH1

CH2

CH3

CH4

Select the FFT source.

Window

Rectangle

Hanning

Hamming

Blackman

Bartlett

Kaiser

Select window for FFT.

Format

Vrms

Radian

Degrees

V RMS and Decibels are amplitude units; Radian,

Degrees are phase units

Display

Hori

Position

value

Time base

value/

Switch to select the horizontal position or time base

of the FFT waveform, click or to adjust it.

Vertical

Position

value

Division

value/

Switch to select the vertical position or voltage

division of the FFT waveform, click or to

adjust it.

FFT

Peak

OFF

Enable or disable FFT peak search. Dynamic marker marks the ▽

FFT peak.

The FFT (fast Fourier transform) math function mathematically converts a time-domain waveform

into its frequency components. It is very useful for analyzing the input signal on Oscilloscope. You

can match these frequencies with known system frequencies, such as system clocks, oscillators,

or power supplies.

FFT function in this oscilloscope transforms 8192 data points of the time-domain signal into its

frequency components mathematically (the record length should be 10K or above). The final

frequency contains 4096 points ranging from 0Hz to Nyquist frequency.

Example for the FFT function operation:

1. Click to call up the menu panel. Click the FFT softkey on panel to switch to the ON state and

display the FFT menu on the bottom. The pink M waveform appears on the screen.

2. In the bottom menu, select . In the right menu, select CH1. Source

3. In the bottom menu, select . In the right menu, select the proper window type. Window

4. In the bottom menu, select . In the right menu, select amplitude unit (V RMS, Decibels) Format

or phase unit (Radian, Degrees).

5. In the bottom menu, select Display. In the right menu, select Hori (Hz); select repeatedly to

make the the horizontal position value (the upper one) click or symbol in front of , to

adjust the horizontal position of FFT waveform; then select to make the symbol in front of

the time base value below, click or to adjust the time base of FFT waveform.

6. Select the right menu; do the same operations as above to set the vertical position Vertical in

and vertical division.

- - 70

9.7.1 Select the FFT window

There are 6 FFT windows. Each one has trade-offs between frequency resolution and magnitude

accuracy. What you want to measure and your source signal characteristics help you to determine

which window to use. Use the following guidelines to select the best windo w:

Type

Characteristics

Window

Rectangle

Best solution for frequency, worst for magnitude.

Best type for measuring the frequency spectrum of

nonrepetitive signals and measuring frequency components

near DC.

Recommend to use for:

 Transients or bursts, the signal level before and after the

event are nearly equal

 Equal-amplitude sine waves with frequencies those are

very close

 Broadband random noise with a relatively slow varying

spectr um

Hanning

Good for magnitude, but poorer frequency resolution than

Hamming.

Recommend to use for:

 Sine, periodic and narrow band random noise

 Transients or bursts where the signal levels before and

after the event are significantly different

Hamming

Better solution for magnitude than Rectangle, and good for

frequency as well. It has slightly better frequency resolution

than Hanning.

Recommend to use for:

 Sine, periodic and narrow band random noise

 Transients or bursts where the signal levels before and

after the event are significantly different

Blackman

Best solution for magnitude, worst for frequency.

Recommend to use for:

 Single frequency waveforms, to find higher order

harmonics

Bartlett

The Bartlett window is a slightly narrower variant of the

triangular window, with zero weight at both ends.

Kaiser

The frequency resolution when using the Kaiser window is

fair; the spectral leakage and amplitude accuracy are both

good.

The Kaiser window is best used when frequencies are very

close to the same value but have widely differing amplitudes

(the side lobe level and shape factor are closest to the

traditional Gaussian RBW). This window is also good for

random signals.

- - 71

Notes for using FFT

 Use the default scale for details of multiple frequencies, even if they have very different dB

amplitudes. Use the scale to compare frequencies. Vrms

 DC component or offset can cause incorrect magnitude values of FFT waveform. To minimize

the DC component, choose AC Coupling on the source signal.

 To reduce random noise and aliased components in repetitive or single-shot events, set the

oscilloscope acquisition mode to average.

What is Nyquist frequency?

The Nyquist frequency is the highest frequency that any real-time digitizing oscilloscope can

acquire without aliasing. This frequency is half of the sample rate. Frequencies above the Nyquist

frequency will be under sampled, which causes aliasing. So, pay more attention to the relation

between the frequency being sampled and measured.

9.8 XY Mode

XY mode is used to display the amplitude of one waveform versus the amplitude of another. The

data point from the first waveform defines the horizontal position, while the corresponding data

point from the second waveform shows the vertical position for each point.

The oscilloscope is in the untriggered sampling mode: the data are displayed as bright points.

Operating the buttons :

 When the HOR button is lit, the upper and lower buttons are used to adjust the horizontal scale

and position

 If one of the channel buttons is lit, the vertical scaling and position are set with the upper and

lower buttons

The following functions are not available in the XY mode:

 Reference or digital waveforms

 Cursor

 Trigger controll

 FFT

Operating steps:

1. Click to call up the menu panel. Click the XY softkey on panel to switch to the state ON

2. To make the XY view full screen, select as in the bottom menu Full Screen ON

9.9 Pass/Fail

The function monitors changes of signals and output pass or fail signals by comparing Pass/Fail

the input signal that is within the pre-defined mask.

Click to call up the menu panel. Click the softkey on panel to switch to the ON state. P/F

- - 72

The pass/Fail function:

Settings

Description

Operate

Start

Stop

Start operation

Stop operation

Output

Pass

Fail

Beep

Stop

Info

Signal tested corresponds with the rule

Signal tested not correspond with the rule

Beep when it satisfies the rule

Stop once satisfying the rule

Control the display status of info frame

Rule

Source

Horizontal

Vertical

Create

Select the source as CH1, CH2, CH3 or CH4

Change the Horizontal tolerance value by clicking or

Change the Vertical tolerance value by clicking or

Use the rule set as testing rule

Save rule

Number

Save

Load

Select any one from Rule1 - Rule8 as your rule name

Select to save the rule Save

Load some rule as the testing rule

Pass/Fail test:

Detect whether the input signal is within the limits of the rule, if it exceeds limits of the rule, it is "Fail";

otherwise it is "Pass". Also, it can output fail or pass signal by built-in and configurable output port.

To run the test, read the following steps:

1. Click to call up the menu panel. Click the oftkey on panel to switch to the state. P/F s ON

2. Create rule Rule Source Horizontal: Select in the bottom menu. Select in the right menu. Set

tolerance and Vertical tolerance in the right menu. Select in the right menu to create the Create

rule.

3. Set output type Output: Select in the bottom menu to enter output option setting. Choose any

one or two of the options " ", " " or " ". " " and " " are mutually exclusive Pass Fail Beep Pass Fail

options, which could not be chosen simultaneously. " " means stop once the condition Stop

satisfies your setting.

4. Begin to test: Operate Start Select in the bottom menu, switch it to , the test will begin.

5. Save rule: SaveRule Select in the bottom menu. Select the save location in the left menu, and

then select in the right menu to save the rules, which could be called up at once when Save

need. Select to call up the rule saved.Load

Note:

1. When Pass/Fail is ON, if XY or FFT is ready to run, then Pass/Fail will be closed; under the

mode of XY or FFT, Pass/Fail is unable.

2. Under the mode of Factory, Auto Scale and Auto Set, Pass/Fail will be closed.

3. When no save setting left in the rule save, tip will be given to show "NO RULE SAVED".

4. Under the status of stop, data comparing will stop, and when it goes on running, the number of

Pass/Fail will increase from the former number, not from zero.

5. When the waveform playback mode is on, Pass/Fail is used to test the played-back waveform

specially.

- - 73

10. Executive buttons

Executive buttons include Copy, Default, Run/Stop, Single and Autoset

Autoset

This button is used to automatically set all the control values of the device required for the

generation of a viewable waveform. Press the AUTOSET button; the oscilloscope then performs a

quick automatic measurement of the signal.

The following table shows the parameter values of the Autoset function:

Functions

Settings

Channel Coupling

Vertical Scale

Adjust to the proper division.

Vertical Position

Adjust to the proper position.

Bandwidth

Full

Horizontal Level

Middle

Horizontal Sale

Adjust to the proper division

Trigger Type

Slope or Video

Trigger Source

The previous source before autoseting.

When the previous source has no input signal, the

source will be set to the minimum channel which

has input signal.

When all the channels have no input signal, the

source will be set to CH1.

Trigger Coupling

Trigger Slope

Rising edge

Trigger Level

3/5 of the Vpk-pk

Trigger Mode

Auto

Display Format

Force

Stop

Help

Exit

Pass/Fail

Off

Inverted

Off

- - 74

Zoom Mode

Exit

Record Length

If greater than 10M, it will be set to 10M

Waveform Math or

FFT

Off

Waveform Record

Off

Slow-scan

Off

Persist

Off

Note: When the autoscale is turned on and running, the Autoset button is invalid.

Description of the icons:

Cancel Autoset Go back to display the upper menu and waveform information. ：

The Autoset function requires that the frequency of signal should be no lower than 20Hz, and the

amplitude should be no less than 5mv. Otherwise, the Autoset function may be invalid.

Run/Stop

Enable or disable sampling on input signals.

Notice: When there is no sampling at STOP state, the vertical division and the horizontal time

base of the waveform still can be adjusted within a certain range, in other words, the signal can be

expanded in the horizontal or vertical direction.

When the horizontal time base is ≤50ms, the horizontal time base can be expanded for 4 divisions

downwards.

Single

Push this button you can set the trigger mode as single directly, so when trigger occurs, acquire

one waveform then stop.

Copy

You can save the waveform by just pushing the panel button in any user interface. The Copy

source wave and the storage location are according to the settings of the function menu Save

when the Type is Wave

10.1 Print the screen image

Follow the steps to print an image of the oscilloscope screen:

1. Connect the printer to the port on the side panel of the oscilloscope. USB Device

Note: The USB Device port supports PictBridge compatible printers.

2. Click to call up the menu panel. Click the Utility softkey on pane select in the l, Function

bottom menu, select in the left menu. Output

3. In the bottom menu, select as . (When is selected, you can get an image by Device PICT PC

Oscilloscope software.)

4. In the bottom menu, select . In the right menu, set the print parameters. The Print Set On

selection of will print out a copy with a white background. Ink Saver

5. Once you have connected a printer to your oscilloscope and set up print parameters, click Play

in the bottom menu to print current screen images.

- - 75

Input connectors of multimeter

Multimeter

Button

11. Using the multimeter

The integrated multimeter can be switched on and off using the DMM button. The display window

appears in the upper right-hand side of the screen after the function has been activated. The

multimeter function is only available for the PeakTech 1206 and PeakTech 1207 oscilloscope

models.

11.1 Connections of the multimeter

The input terminals are on the top of the oscilloscope, which marked as COM, V/Ω/C.

Figure 5.1 Multimeter connection sockets

11.2 Menu of the multimeter

Press the DMM button on the front to access the multimeter function. The backlight of the button

lights up when the multimeter function is activated.

The measuring function is selected with the Select button. Switch between AC and DC when

measuring voltage or current. Furthermore, it is possible to choose between resistance

measurement, capacitance measurement, continuity test and diode test using the Select button.

Figure 5.2 Multimeter function buttons

- - 76

The multimeter menu is described in the following table:

Settings

Description

Current

ACA

DCA

Measuring AC current

Measuring DC current

Voltage

ACV

DCV

Measuring AC voltage

Measuring DC voltage

Resistance measurement

Diode test

Testing continuity

Capacitance measurement

Hold

OFF

Freeze the display during measurement

Configure

Relative

Setzt den aktuellen Messwert auf null. Die

Messung ist der Differenzwert des

Referenzwertes zur aktuellen Messanzeige.

Show info

ON OFF

Show / Hide the information window

Auto range

Select auto range mode

Manual range

selection

Select manual range mode

- - 77

11.3 DMM information window

The multimeter information window is displayed on the top right of the screen

Figure 5.3 Multimeter measurement screen

Description

1. Manual/Auto range indicators, MANUAL refers to the measuring range in manual operation

mode and AUTO refers to the measuring range in automatic operation mode.

2. Measurement mode indicators:

Voltage measurement

Current measurement

Resistance measurement

Diode measurement

Capacitance measurement

Continuity test

3. Current measuring range

4. Measured value with unit

5. Data-Hold activated

6. Multimeter recorder

7. Reference value oft he raltive measurement

8. Range of measuring current: mA or 10A

9. or DC when measuring current or voltage AC

- - 78

11.4 Measurements with the multimeter

11.4.1 AC/DC voltage measurement

1. Push button on the front panel. Select in the bottom menu, select it again to DMM Current

switch between (AC current) or (DC current). ACA DCA

2. Connect the black test lead to the COM terminal on the top of the oscilloscope and the red test

lead to the terminal. V/Ω/C

3. Probe the test points and read the display.

11.4.2 AC/DC current measurement

1. Push button on the front panel. Select in the bottom menu, select it again to DMM Current

switch between (AC current) or (DC current). ACA DCA

2. Insert the current ext module provided with the oscilloscope into the COM terminal and V/Ω/C

terminal on the top of the oscilloscope.

3. Connect the black test lead to the terminal on the top of the oscilloscope. Connect the COM

red test lead to the mA terminal.

4. Turn off the power of the measured circuit. Discharge all high- voltage capacitors.

5. connect the circuit path to be tested. Connect the black test lead to one side of the circuit Dis

(with a lower voltage); connect the red test lead to the other side (with a higher voltage).

Reversing the leads will produce a negative reading, but will not damage the multimeter.

6. Turn on the power of the measured circuit, and read the display.

7. Turn off the power of the measured circuit and discharge all high-voltage capacitors. Remove

the test leads and restore the circuit to the original condition.

11.4.3 sistance measurement Re

1. Press the DMM button on the front of the device. Then press R in the lower menu several

times to toggle between resistance, diode and capacitance until R is highlighted.

2. Connect the black test lead to the terminal on the top of the oscilloscope and the red test COM

lead to the terminal. V/Ω/C

3. Connect the test probes to the (voltage-free) electrical conductor to be measured and read

the measured value on the digital display of the multimeter window.

Note: Never carry out a resistance measurement on a live conductor to avoid damaging the

device.

Produkt Specifikationer

Mærke:	PeakTech
Kategori:	Multimeter
Model:	1211

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